MooNEY
@-
OWNERS MANUAL
ground, service each fuel tankafter flight with
100/130
oc-
tane aviation- grade gasoline. Both tanks have fuel level
indicators that are visible through the fuel filter ports.
mese indicators show the
25-gallon fuel
level in each tank.
Before filling the fuel tanks when planning
a
maximum weight
flight configuration, consult the Weight
&
Balance Record
in the airplane file for loading data.
,
.
CAUTION: Never use aviation fuel of
a
lower grade'
than
100/130 octane. Aviation fuel grades can be dis-
tinguished by their color:
80/87 octane
is
red, 91/96
octane
is
blue, 100/130 octane
is
green, 115/145 oc-
tane
is
purple.
Sample fuel from the sump
drsln in each tank before the
first flight of the day and after each refueling to check for
'water or sediment contamination.
WARNING:
Allow five minutes after refueling for
water and sediment to settle in the tank and fuel selec-
tor valve drain before taking fuel samples or drain-
ing the selector valve.
Figure
'7-
4 shows tank sump
drain access. These drains
are near eachwing root for-
ward of the
1::heel wells.
A
small plastic cup
is
supplied
in the loose equipment kit
for obtaining fuel samples.
To collect
a
fuel sample,
insert the cup actuator prong
in the sump drain receptacle
and push upward to open the
valve momentarily and drain
fuel into the cup.
If
water
is
in the fuel, a distinct line
separating the water from
'IGURE
'-''
FUEL
the gasoline will be seen
SAMPLING
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